Interestingly, Amex has not publicly communicated or sent members any notification of the supposed change in benefits.
I'm sure they can just screw us, but it SEEMS like there might be a need for notification other than showing up at a PP restaurant and having someone say "Oh... that card doesn't work like it did yesterday, sir."
(I'm truly bummed if it does go down like that - I don't have a lounge option at the airports I often am in, but do like the restaurant benefit.)